Sony Multiscan CPD-1304S Service Manual page 93

GasLab Q2 displays and operating the device
Correct the interference at point 1 - 4 (gas supply failure)
The following measures can be taken if a fault occurs in the gas supply, e.g. abnormal
calibration gas loss
.
Steps to resolve gas supply disruption
Perform a leak test by examining the entire gas path (from the cylinder / from the pipeline / to the
1.
device) with a gas detector
2. Seal leaks found in a professional manner.
3. Set the regulators and valves to the required values
Disconnect plugged lines from the power less device. Blow the line with non-combustible gas
4. and eliminate blockages and deposits. Make sure not to exceed the maximum pressure
Correct the interference at point 5 (electric utilities and insulation failure)
The following measures can be taken if a fault in the electrical energy supply occurs. To localize
the fault, use of a voltmeter is required. If the device is not powered or the supply voltage / supply
current is too low you may can see following effects:
The interactive display and the LEDS are dark
The interactive display is dark and the right status LED is off or flashing
The interactive display is dark and the valves are swiching continuously
Steps to test the electrical supply
1. Check all switching and safety devices outside Q2 and replace defective fuses.
Check if the cable connections between the device and the electrical supply are OK (no
2. disconnection in the wiring). Make sure once again there is low resistance electrical contact. If
necessary, connect the wires again.
Check there is power to the voltage at the feed source and this is not affected by congestion of
3. other devices, insulation failure or defective components and is reduced. Remove or replace
these parts if necessary.
Measure the open circuit voltage (without connections). If a defect is present exchanged or
4.
repair electrical supply.
Measure the incoming open-circuit voltage of the power cable to the device. Switch off electrical
power and disconnect plug of supply cable at connection board in the Q2 connection box. Switch
5. on electrical supply and execute a voltage measurement in the plug. If the voltage is missing or
significantly less than the open circuit voltage, replace the cable (power less) from the power
supply.
If the problem is still not resolved after 1 -5 steps the fault lies in the interior of the device. Please
contact Elster GmbH to check the internal fuse.
6.
For replacement, it is necessary to open up the housing, this should be performed for
safety reasons only by the service or appropriately trained staff.
If the overheat protection circuit or the internal fuse has triggered, the
interactive screen is also dark and the status LEDs are off. The components
involved in the measurement are switched off. Please contact Elster GmbH.
GasLab Q2 G a s Q u a l i t y A n a l y z e r
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